East Japan Railway Harvests Power from Commuters

We've seen energy-generating dance floors, gyms and revolving doors, but the kinetic energy floors in testing at East Japan Railway Company's Tokyo station take passive energy one thrilling step further.

This Tokyo subway station is perennially among the busiest in the world. The 25 square meters of piezoelectric energy-generating floors; the heavy foot traffic to Tokyo Station will yield 1,400kW/sec per day. That's more than enough clean power to run the automatic ticket gates and electronic display systems, according to Tech-On.